SPECTRASWITCH™ Patented, Self-Testing Fiber-optic remote switching system
Spectraswitch™ uses light over fiber to replace electrically wired remote switches/sensors in passive fiber-optic systems ↓↓
Spectraswitch™ uses light over fiber to replace electrically wired remote switches/sensors in passive fiber-optic systems ↓↓
Why Spectraswitch™
In a conventional remote switch or sensor, the device’s power is sent out to the switch/sensor and back through copper wire. That extra wiring adds resistance and voltage drop, and it creates more opportunity for arcing, shorts, or shock in wet conditions. Spectraswitch is immune to those hazards because the remote switch and fiber carry light, not electricity, for control.
The optical loop is monitored by an industry-first self-testing circuit built into the optical transceiver at the controlled device or appliance. The same unpowered optical loop can confirm that the switch is actively communicating a switch position with the controlling transceiver in all switch positions.
The difference
The remote switch/sensor is no longer part of the electrical circuit. Power stays at the device that uses it. The control path cannot short, arc, or create a shock hazard, and it does not add the extra copper loop that causes resistance and voltage drop.
Where it matters
Spectraswitch is useful anywhere a remote switch/sensor should not carry current: wet or hazardous locations, long runs, weight-sensitive systems, and environments where electromagnetic interference is a concern. Light transmission through an optical fiber is naturally immune to EMI.
How it works
A thin optical fiber reaches the remote switch/sensor. Light, not electricity, reports the switch position or sensor state. The device itself can still be powered as needed. Only the control path is optical. Self-testing is handled at the transceiver on the powered device, not at the remote switch.
What it provides
If electrical switching hazards are the challenge, contact us for more information.
The remote switch/sensor utilizes optical switching technology and is completely passive, operating with zero electrical power. All signaling and feedback travel as light over a single optical fiber, thereby eliminating electrical current in the field wiring.
Spectraswitch is also more cost-effective and simpler to implement, employing low-cost optical fiber along with straightforward polymer/plastic composite materials instead of increasingly expensive copper. This simplifies installation and maintenance, eliminating the need for complex electrical grounding or shielding.
Key Safety Advantages:
- Arc-Fault & Ground-Fault Proof — Elimination of risks associated with arcing or ground faults in the transmission path.
- Explosion-Proof & Spark-Free — Perfectly suited for hazardous locations (Class I Div 1/2).
- Continuous Self-Testing — Provides instant detection of fiber damage or switch failure.
- EMI Immune & Non-Magnetic — Safe for use in aerospace, defense, MRI rooms, and other sensitive environments.
By removing electricity from the remote end, Spectraswitch™ significantly reduces common causes of fires, explosions, and electrical failures, all while ensuring reliable, mission-critical performance using advanced optical switching.

The remote switch/sensor utilizes optical switching technology and is completely passive, operating with zero electrical power. All signaling and feedback travel as light over a single optical fiber, thereby eliminating electrical current in the field wiring.
Spectraswitch is also more cost-effective and simpler to implement, employing low-cost optical fiber along with straightforward polymer/plastic composite materials instead of increasingly expensive copper. This simplifies installation and maintenance, eliminating the need for complex electrical grounding or shielding.
Key Safety Advantages:
- Arc-Fault & Ground-Fault Proof — Elimination of risks associated with arcing or ground faults in the transmission path.
- Explosion-Proof & Spark-Free — Perfectly suited for hazardous locations (Class I Div 1/2).
- Continuous Self-Testing — Provides instant detection of fiber damage or switch failure.
- EMI Immune & Non-Magnetic — Safe for use in aerospace, defense, MRI rooms, and other sensitive environments.
By removing electricity from the remote end, Spectraswitch™ significantly reduces common causes of fires, explosions, and electrical failures, all while ensuring reliable, mission-critical performance using advanced optical switching.
Spectraswitch™'s Control-by-Light technology is transforming aeronautical and aerospace innovations, automotive technologies, Industrial and advanced robotics—delivering safer, lighter, EMI-immune systems with zero-power remote operation. Novel use cases based on customer interest are continually being developed.
Self-Diagnostic, Multiplexed Multi-Position Optical Switching with Built-in Feedback Loop — All Over a Single Fiber, with Zero Power at the Remote Switch End.
Spectraswitch™ offers passive fiber optics for optical switching in aeronautical/avionics and aerospace systems, automotive controls, industrial safety systems, advanced robotics, defense/marine applications, and custom EMI-immune, zero-power remote switching.
Industrial Safety & Lockout Solutions Spectraswitch™'s Control-by-Light technology leverages advanced optical switching to enhance security protocols. It offers reliable fiber-optic monitoring, efficient remote switch control, and built-in self-diagnostics for proactive safety. More custom options available.

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